<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.$store.state.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div class="button-wrapper"
               v-for="item of hot"
               :key="item.id"
                @click="handleCityClick(item.name)">
            <div class="button">{{item.name}}</div>
          </div>

        </div>
      </div>
      <div class="area" v-for="(item,key) of cities"
            :key="key"
            :ref="key"
           >
        <div class="title border-topbottom">{{key}}</div>
        <div class="item-list">
          <div class="item border-bottom"
              v-for="innerItem of item"
              :key="innerItem.id"
               @click="handleCityClick(innerItem.name)">
            {{innerItem.name}}
          </div>
        </div>
      </div>

    </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'

export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  methods: {
    handleCityClick (city) {
      this.$store.commit('changeCity', city)
      this.$router.push('/')
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
      // console.log(this.letter)
    }
  }
}
</script>

<style scoped lang="stylus">
  @import "~styles/varibles.styl"
  .border-topbottom
    &:before
      border-color #ccc
    &:after
      border-color #ccc

  .border-bottom
    &:before
      border-color #ccc

  .list
    overflow hidden
    position absolute
    top 1.58rem
    left 0
    bottom 0
    right 0
    .title
      line-height: .54rem;
      background: #eee;
      padding-left .2rem
      color #666
      font-size .26rem
    .button-list
      overflow hidden
      padding .1rem .6rem .1rem .1rem
      .button-wrapper
        width 33.33%
        float left
        .button
          text-align center
          margin .1rem
          border: 0.02rem solid #ccc
          border-radius .06rem
          padding .1rem 0
    .item-list
      .item
        line-height .76rem
        color #666
        padding-left .2rem
</style>
